import Vue from 'vue'
import VueRouter from 'vue-router'
// 路由懒加载改造
// import Login from '../components/Login.vue'
const Login = () =>
    import ( /*webpackChunkName: "login_home_welcome"*/ '../components/Login.vue')
    // import Home from '../components/Home.vue'
const Home = () =>
    import ( /*webpackChunkName: "login_home_welcome"*/ '../components/Home.vue')
    // import Welcome from '../components/Welcome.vue'
const Welcome = () =>
    import ( /*webpackChunkName: "login_home_welcome"*/ '../components/Welcome.vue')

// import Users from '../components/Users.vue'
const Users = () =>
    import ( /*webpackChunkName: "users_rights_roles"*/ '../components/Users.vue')
    // import Rights from '../components/power/Rights.vue'
const Rights = () =>
    import ( /*webpackChunkName: "users_rights_roles"*/ '../components/power/Rights.vue')
    // import Roles from '../components/power/Roles.vue'
const Roles = () =>
    import ( /*webpackChunkName: "users_rights_roles"*/ '../components/power/Roles.vue')

// import Cate from '../components/goods/Cate.vue'
const Cate = () =>
    import ( /*webpackChunkName: "cate_params"*/ '../components/goods/Cate.vue')
    // import Params from '../components/goods/Params.vue'
const Params = () =>
    import ( /*webpackChunkName: "cate_params"*/ '../components/goods/Params.vue')

// import List from '../components/goods/List.vue'
const List = () =>
    import ( /*webpackChunkName: "list_add"*/ '../components/goods/List.vue')
    // import Add from '../components/goods/Add.vue'
const Add = () =>
    import ( /*webpackChunkName: "list_add"*/ '../components/goods/Add.vue')

// import Order from '../components/order/Order.vue'
const Order = () =>
    import ( /*webpackChunkName: "order_report"*/ '../components/order/Order.vue')
    // import Report from '../components/report/Report.vue'
const Report = () =>
    import ( /*webpackChunkName: "order_report"*/ '../components/report/Report.vue')


Vue.use(VueRouter)

const routes = [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    {
        path: '/home',
        component: Home,
        redirect: '/welcome',
        children: [
            { path: '/welcome', component: Welcome },
            { path: '/users', component: Users },
            { path: '/rights', component: Rights },
            { path: '/roles', component: Roles },
            { path: '/categories', component: Cate },
            { path: '/params', component: Params },
            { path: '/goods', component: List },
            { path: '/goods/add', component: Add },
            { path: '/orders', component: Order },
            { path: '/reports', component: Report },
        ]
    }
]

const router = new VueRouter({
    routes
})

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
    // to访问的路径
    // from从哪个路径跳转过来的
    // next 一个函数
    // next() 放行  next('/login')强制跳转
    if (to.path === '/login') return next()
    const tokenStr = window.sessionStorage.getItem('token')
    if (!tokenStr) return next('/login')
    next()
})

export default router